每个硒测试启动的javafx应用程序

Question

我有一个场景，在执行每个测试之后，我想启动一个Javafx应用程序窗口。

这样做的时候，我发现了以下异常 java.lang.IllegalStateException：不在FX应用程序线程上； currentThread =主要  在语句stage.setScene（scene）;

请在下面找到我的代码

package com.comcast.ui;

import java.io.IOException;
import java.net.URL;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.LinkedHashMap;

import org.apache.log4j.Logger;

import com.comcast.main.PopulateMethod;
import com.comcast.main.XMLCreator;
import com.comcast.ui.controller.PopupUIController;
import com.comcast.ui.controller.UIController;
import com.comcast.ui.data.TestData;
import com.comcast.ui.data.TestMethod;
import com.sun.javafx.application.LauncherImpl;
import com.sun.javafx.tk.Toolkit;

import javafx.application.Application;
import javafx.application.Platform;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonType;
import javafx.scene.image.Image;
import javafx.scene.layout.FlowPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;

public class PopupUI extends Application {

    static Logger log = Logger.getLogger(PopupUI.class);

    private static String startUpFile = "PopupUI.fxml";
    private static String header = "Interactive API Pop up";
    private static int screenWidth = 1000;
    private static int screenHeight = 1000;

    private static Pane view = null;
    private static Scene scene = null;

    private static LinkedHashMap<String, String> currentStepHashPopUp;
    public static int clickButton = 0;
    private static boolean launchPopupUI;
    public static Stage stage;
    private static PopupUIController controller = null;
    public static boolean isStageVisible = false;
    public static final int btnContinueClick = 1;
    public static final int btnAbortClick = 100;

    private static PopupUI popupUIClassInstance;

    public static Thread thread;

    @Override
    public void init() throws Exception {
        // Do some heavy lifting
    }


    @Override
    public void start(Stage primaryStage) {

        stage = primaryStage;
//      Platform.setImplicitExit(false);
//      popupUIClassInstance = this;
//      thread = Thread.currentThread();
        loadStage(primaryStage);
    }
//      });
//  }

//  public static void main(String[] args) {
////        launch(args);
////        LauncherImpl.launchApplication(PopupUI.class, args);
//      Application.launch();
//      Platform.setImplicitExit(false);
//
//      while (clickButton < 1) {
//      }
//      System.out.println("Program Ends here");
//
//  }




    public void startStandAlonetApplication(String[] args,
            LinkedHashMap<String, String> currentStepHash) {
        currentStepHashPopUp = currentStepHash;

        launch(args);

    }


    public static void hide() {
        if (controller == null) {
            log.debug("controller is null");
            return;
        }
        stage.hide();
        isStageVisible = false;
    }

    public static void show() {
        if (controller == null) {
            log.debug("controller is null");
            return;
        }
        Platform.runLater(() -> {
          stage.show();
        });
        isStageVisible = true;
    }

    public  void loadStage(Stage stage) {
        try {
            FXMLLoader loader = new FXMLLoader(PopupUI.class.getResource("PopupUI.fxml"));
            // Create a controller instance
//          currentStepHashPopUp = new LinkedHashMap<String, String>();
            controller = new PopupUIController(currentStepHashPopUp);
            // Set it in the FXMLLoader
            loader.setController(controller);
//          loader.load();
            view = loader.load();
        } catch (Exception e) {
            e.printStackTrace();
        }

        if (startUpFile.equalsIgnoreCase("PopupUI.fxml"))
            scene = new Scene(view, 1500, 1000);
        else
            scene = new Scene(view, screenWidth, screenHeight);


        Button btnContinue = (Button) scene.lookup("#btnContinue");
        Button btnAbort = (Button) scene.lookup("#btnAbort");

        EventHandler<ActionEvent> btnContinueHandler = new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                System.out.println("Continue Button Click");
//              btnContinue.setDisable(true);
//              stage.hide
//              Platform.exit();
                hide();
                clickButton = btnContinueClick;

            }
        };

    ;

        btnContinue.setOnAction(btnContinueHandler);

        EventHandler<ActionEvent> btnAbortHandler = new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                System.out.println("Abort Button Click");
//              stage.hide();
//              Platform.exit();
                hide();
//              btnAbort.setDisable(true);
                clickButton = btnAbortClick;
            }
        };

        btnAbort.setOnAction(btnAbortHandler);

        stage.setTitle(header);
        stage.setScene(scene);
        stage.show();
    }

}

这是我在测试结束时尝试调用此应用程序的方式：

PopupUI popupUI = new PopupUI();
        if(PopupUI.stage==null) {
            popupUI.startStandAlonetApplication(args, currentStepHashUIPrompt);
        }else {
            popupUI.start(PopupUI.stage);
        }

如何避免此错误？请帮忙吗？